<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link href="css/guid2.css" rel="stylesheet" type="text/css">
    <script src="js/guid2.js" type="application/javascript"></script>
</head>
<body>
<div class="guid">
    <ul class="g1">
        <li>
            <a href="#">
                <div class="font">首页</div>
            </a>
        </li>
        <li>
            <a href="#" id="g2" onclick="MouseClick(this);">
                <div class="font">一级栏目</div>
                <img src="imgs/a.png">
            </a>
            <ul class="g2" id="g2_sub">
                <li><a>二级栏目1</a></li>
                <li><a>二级栏目1</a></li>
                <li><a>二级栏目1</a></li>
                <li><a>二级栏目1</a></li>
            </ul>
        </li>
        <li>
            <a href="#" id="g3" onclick="MouseClick(this);">
                <div class="font">一级栏目2</div>
                <img src="imgs/a.png">
            </a>
            <ul class="g2" id="g3_sub">
                <li><a>二级栏目21</a></li>
                <li><a>二级栏目21</a></li>
                <li><a>二级栏目21</a></li>
                <li><a>二级栏目21</a></li>
            </ul>
        </li>
    </ul>
</div>
</body>
</html>